81. Consider a sequence x(n) = [2, 4, 6, 8, 0, 1, 3, 5, 7, 9]. Down-sample the sequence by 3 and then up-sample by 2. The resulting sequence is:
82. A discrete time system has impulse response h(n) = anu(n + 2), |a| < 1. Which one of the following statements is correct? The system is
83. A periodic function satisfies Dirichlet's conditions. This implies that the function
84. What is the Laplace transform of x(t) = -e2tu(t) * tu(t)?
85. Transient signals can be observed using
86. Consider a signal x(t) = 4cos(2t/3) + 8sin(0.5t) + 7sin(t/3 - π/6). Calculate the fundamental periodic.
87. The LTI system with h(t) = e-t, -∞ < t < ∞ is
88. Digital filters have . . . . . . . . and are best suited for . . . . . . . . phase.
89. The response of a Gaussian random process applied to a stable linear system is:
1. A Gaussian random process
2. Not a Gaussian random process
3. Completely specified by its mean and auto covariance functions
Which of the above statements is/are correct?
1. A Gaussian random process
2. Not a Gaussian random process
3. Completely specified by its mean and auto covariance functions
Which of the above statements is/are correct?
90. A rectangular pulse of duration T is applied to a filter matched to this input. The output of the filter is a
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